condition mean min max 4 h after light 0.860379 0.852143 0.868615 8 h after light 1.773295 1.18717 2.35942 12 h after light 3.168285 2.56927 3.7673 4 h after dark 2.57417 2.34291 2.86884 8 h after dark 1.1302050000000001 0.992925 1.2394 12 h after dark 0.5914586666666667 0.0 0.924251